Guide

How to compress a PDF for email (under 10 MB)

Make a PDF small enough for email or upload portals — locally in your browser, with a target size option.

1. Open the Compress tool and drop the PDF.
2. Pick Smart for a good balance, or set a target size such as 9 MB for email.
3. Click Compress and check the new size in the result.
4. If the file is still too big, lower the image quality or split the document into parts.

Tips

• Scanned PDFs shrink the most: they are mostly images.
• If compression can't make the file smaller, Lockpage keeps the original instead of giving you a bigger file.